We are currently using Callcredit, over the long run we would like to share this with more agencies. All CRAs will detail the relation type (loan /overdraft etc), the limits, balances, and status of payments ( missed payments and defaults). The CRAs will give us a standard template to submit the data.
The data shared with agencies should be very similar. However, all financial institutions may not share data with all bureaus and hence you may not observe the same information in different CRAs. Hope that helps.